diff --git a/Home.md b/Home.md
index 99a215c..7530163 100644
--- a/Home.md
+++ b/Home.md
@@ -249,6 +249,27 @@ a2enmod proxy_http
 
 You will need to set ``SELF_URL_PATH`` to a correct (i.e. visible from the outside) value in the ``.env`` file.
 
+### I have internal web services tt-rss is complaining about (URL is invalid, loopback address, disallowed ports)
+
+Put your local services on the same docker network with tt-rss, then access them by service (= host) names, i.e. `http://rss-bridge/`.
+
+```yml
+services:
+   rss-bridge:
+....
+networks:
+  default:
+    external:
+      name: ttrss-docker_default
+```      
+      
+If your service uses a non-standard (i.e. not 80 or 443) port, make an internal reverse proxy sidecar container for it.
+
+See also:
+
+- https://community.tt-rss.org/t/heads-up-several-vulnerabilities-fixed/3799/
+- https://community.tt-rss.org/t/got-specified-url-seems-to-be-invalid-when-subscribing-to-an-internal-rss-feed/4024
+
 ### Backup and restore
 
 Unless you have `backups` container disabled, stock configuration makes automatic tt-rss database backups once a week to a separate storage volume.